Cylinder structure



Nov. 11, 1930.

T. E. HERRICK, JR

CYLINDER STRUCTURE Filed Jan. 29. 1929 3 Sheets-Sheet 1 1930. T. E. HERRICK, JR 1,781,582

CYLINDER STRUCTURE Filed Jan. 29. 1929 3 Sheets-Sheet 2 [22 Van 5011 1930- T. E. HERRICK, JR

CYLINDER STRUCTURE Filed Jan. 29, 1929 3 Sheets-Sheet o o o o o o o m 0 NO MN 0 o o m e 0 o o 0 MN M 0 o o 0 o o o 0 A wfi NM a g all three cylinders are high pressure cyling g a IOIIg and rigid beaimg for sa1d Patented Nov. 11,1930 i I v i v UNITED STATES- PATENT O E THOMAS E. HERR-ICK,JTR., or PHILADE PHIA, PENNsYLvANIa':

CYLINDER STRUCTURE Application filed January 29, 1929. Serial No. 335,827.

The invention relates to certain improvebox of the locomotive directlylunder the stack ments in three-cylinder locomotives, in which in the usual manner. V I one cylinder is located between the side 7 The central cylinder 'structure lhas flanges frames of the locomotive and the other cyl- 11 which rest upon the side frames and has inders mounted on the outside of said the usualsaddle 12 whichis cast integral with frames. said structur The object of my invention is torso construct The side cylinderstructures 3+3? are identhe locomotive that a deep frame can be used tical in form, with theexception that one is to which the cylinder structures are rigidly a left-hand cylinder structureand the-other secured, and to perforate the frame for the is a right-hand cylinder structure. In each on passage of exhaust steam from the outside ,struetureis a cylinder 13and a cylindrical cylinders tothe passages in the central cyl- Valve-chest 14. Ports 15 connect the valveinder structure. 7 chest with both ends'of its cylinder, and each In the accompanying drawings: valve-chest has aninlet port 16.- V 5 15 Fig. lis a transverse sectional view through Exhaust passages 17 lead from the valve (35 the cylinders and frames of a three-cylinder chest'to passages 18 in the side frames of the locomotive; locomotive, shown clearly in Figs. 1 and2. Fig. 2 is a side view, with one of the side .In the present instance the. exhaust passages cylinders removed; 17 of the left-hand cylinder structure '3 com- Fig. 3 is a detached View of one of the side' munic'ate with the exhaust passage 9 in the 0 cylinders; central cylinder structure 2, While the ex- Fig. 4 is a side view of the front portion haust passages 17 of the right-hand cylinof one of the side frames; and der communicate through the. passages 18in Fig. 5 is a plan view of the frame shown in the frame with exhaust passages 19 which Fig. 4c. Open into the main. exhaust passage 9 some 75 In the accompanying drawings, 1-1 are distance fromthe frameas shown in Fig.1. the side frames of the locomotive, spaced a Each side cylinder structure has lugs 20 given distance apart and made as shown in which rest upon the upper edge of its name. F igs. 4 and 5. Theside frames are made as shownin i s.

Located between the side frames is the cen- 4 and 5, being of considerable dep h t t 9 S0 tral cylinder structure 2, and located on the cyl nder structures as at 21, having vertical outside of one of the frames is a cylinder lugs 22-22 between which the cylinder strucstructure 3, while on the opposite side is the tunes are mounted. Keys 23 are driven becylinder structure 3 In the present instance tween the lugs and each cylinder structure,

ders Structure. w

The central cylinder structure 2 has a cyl- The frames extend beyond the lugs and inder l preferably inclined as shown in Fig. farm mp Supports 2 frames are 1. The valve-chest 5 of this cylinder forms reducedlm depth at thls t to U0 an integral part of the central structure 2 tgj i fl fl d and has an inlet passage 6 arranged to be ac Cy 1n Structure 1S ange I curin bolts pass through openings25 in the coupled to a high pressure steam pipe. The g and Openings 26 in the side frames,

valve-chest is cylindrical and has the usual bushings and ports. Passages 7 lead to and ai g ggfig gi g z rg g y from the end of the cylinder 4: and exhaust id bl d th at this point, a very rigid passages 8 lead from the valve-chest to an t ti lw exhaust passage 9, which is formed around B ki th passages 1 i th id the underside of the y in er 4 n leads frames, the exhaust passages are compara-..

5 to the nozzle lO which opens into the smoketively straight. 7

While I have described my invention as applied to a three-cylinder high pressure 10- comotive, in some instances the central cylinder may be omitted and a central structure 5 may be used having only the exhaust passage, nozzle and saddle, or the central cylinder may be a high pressure cylinder and the side cylinders low pressure cylinders, without departing from the essential features of the invention.

1. The combination in a locomotive of the three-cylinder type, of two side frames having exhaust passages therein; a central cylinder structure mounted between the frames and having an integral cylinder; an exhaust passage formed in the central cylinder struc ture,said exhaust passage extending under and around one side of the central cylinder,

2 and having openings aligning with the passages in the two frames; a side cylinder on each side of the structure, one mounted on the outside of one frame and the other mounted on the outside of the other frame, and

having exhaust passages communicating with the passages in the frame of the locomotive,

- whereby the exhaust from the said side cyl- "inders passes through the frames and through the central cylinder structure.

2. The combination in a locomotive of the three-cylinder type, of two side frames, each having an exhaust passage therein; two side cylinder structures having flanges secured to r the outside of the side frames, the cylinder portions of the cylinder structures extending below the lower edges of the side frames,

and having exhaust passages communicating with the exhaust passages in the side frames;

a central cylinder structure secured to the 40 inner sides of the said side frames, and having an inclined cylinder located entirely above the lower edges of the frames; exhaust passages in the central structure extending under and around one side of the cylinder,

and communicating with the exhaust passages in the frames.

. THOMAS E. HERRICK, JR. 

